Lighting apparatus.



' E., A. H AWTHORNE LIGHTING APPARATUS.

APPLICAHON'FILED MAR. 24. 1913.

Patented Sept. 5, 1916. I

IIIIIIF" 4%: [III ELLSWORTH A. HAWTHORNE, F BRIDGEPORT, CONNECTICUT:

LIGHTING APPARATUS.

To all whom it may concern:

, Be it known that I, ELLSWORTH A. HAw-- 'rnounu. a citizenof the UnitedStates, and a resident of Bridgeport, county of Fairfield, State ofConnecticut, (whose postotlice address is 35 Spruce street, Bridgeport,COnnectiCut,) have invented an Improvement in Lighting Apparatus, ofwhich the following description, in connection with the accompanyingdrawings, is a specification, like characters on the drawingsrepresenting like parts.

This invention relates to lighting apparatus and more especially, thoughnotexclusively, to tail lamps for motor vehicles and more particularlymotor cycles.

My invention will be best understood by reference to the followingspecification when taken in connection with the accompanying drawings ofone illustrative embodiment thereof, while its scope will be moreparticularly pointed out in the appendedclaims.

In the drawings: Figure 1 is a vertical sectional view partly inelevation of one j a number plate. The lamp chosen for purform oflighting apparatus embodying my invention, the electric generator andwiring of the generator circuit being shown diagrammatically; Fig. 2 isa sectional view on line 22 of Fig. 1, looking in the direction of thearrows on said line; and Fig. 8 is a plan sectional view on line 33 ofFig. 1.

Referring to the drawings'and to the embodiment of my invention which Ihave selected for illustrative purposes, I have there shown a tail-lampwhich is arranged to show a red light at the rear as well as toillui'ninate poses of exemplification comprises a lampcasing 5 providedat its rear with a lighttransmitting element 6 herein in the form of aso-called red jewel, while the bottom of the casing is provided with alighttransmittingelemcnt 7 herein in the form of a sheet of cleartransparent glass orother transparent substance. Theselight-transmitting elementsmay be fitted into suitable apertures in thelamp-casing in any appropriate manner. Preferably the element 6 ismounted in the lamp-casing in such a manner as to b convenientlyremovable to renderthe interior of the lamp-casing accessible.

Within the lamp-casing are two suitable lamps 8 and 9 preferablyelectric incandescent bulbs having difi'er'ent candle-powers.

' The lamp 8 having the greater candle-power is connected in circuitwith a suitable elec- Speeifieation of Letters Patent. Patgfltgd Sept,5, 1916, Application filed March 24, 1913.v Serial No. 756,493.

tric generator 10 of the character usually employed on motor vehiclesand driven by the engine. In the use of motorcycles it is desirable andin fact quite customary to stop the engine when the cycle is at rest.Under these circumstances, the engine-driven generator would cease tosupply the necessary current to the lamp. As a means for fur nishing therequired light in order to com ply with the law, I provide the lowcandlepower lamp 9 in circuit with a suitable battery 11, preferablyadry battery.' The latter is herein mounted in a battery-casing 12preferably secured to the lamp-casing 5. A suitable bracket 13 may serveto support both casings.

In. the present instance, the lamp 9 extends through the wall of thelamp-casing 5, through the bracket 13, and through the wall of thebattery-casing 12. One terminal 14:

of the lamp 9 is electrically connected through the metallic casing 12to a terminal .vided on the end of the'battery casing serves to forcethe switch 18 into contact with the terminal 19 to completethe batterycircuit.

By this means, it' the generator should be stopped, or if an accidentshould occur to v the generator circuit of the system the lamp 9 may belighted so as to enable the userto comply with the law. By. providing alamp of low candle-power for the battery circuit the current consumptionis low and the lamp may be operated very economically.

While the lamp 8 may be mounted in any other appropriate manner, it isherein fitted into a socket 9.2, and the latter extends through aclamping collar 23 formed as a part of the lamp-casing and provided witha suitable clamping screw 24. By s this means thela'mp socket is rigidlymounted in the lamp-casing in such a manner as to be readily removed andreplaced.

hile I have herein shown and described one form of my invention forillustrative purposes, and have disclosed and'discussed in detail theconstruction and arrangement- 1nc1dental to one specific embodimentthereof, it is to be understood that the invent-ion islimited neither tothe mere details nor.

relative arrangement of parts, nor to the I specific embodiment hereinshown, but that extensive deviations from the illustrative form orembodiment of the invention may be made Without departing fromthe'principles thereof.

- Having thus described one embodiment of my invention, what I claimis 1. A lighting apparatus for a vehicle comprising, in con'rb natlon, alamp-casing havlng provision for the transmission of light through itsrear and its bottom, two lamps of different candle-powers within saidlampcasing and both arranged to shed their rays through the rein andbottom of the casing, separate means for furnishing a lighting supply ofthe same character to said lamps,

and means at will to cut ofi" the supply from one of said lamps. I

2. A lighting fixture for vehicles comprising a lamp casing, a batterycasing secured .to'i'said lamp-casing, a low candle-power ELLSWORTH A.HA lVTHOR NE.

\Vitnesses I LOUIS A. JoNics, CLARA L. STUART.

